/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.shardingsphere.sql.parser.statement.core.statement.attribute.type;

import lombok.Getter;
import lombok.RequiredArgsConstructor;
import org.apache.shardingsphere.sql.parser.statement.core.statement.attribute.SQLStatementAttribute;

import java.util.Optional;

/**
 * Allow not use database SQL statement attribute.
 */
@RequiredArgsConstructor
public final class AllowNotUseDatabaseSQLStatementAttribute implements SQLStatementAttribute {
    
    @Getter
    private final boolean allowNotUseDatabase;
    
    private final String databaseName;
    
    public AllowNotUseDatabaseSQLStatementAttribute(final boolean allowNotUseDatabase) {
        this.allowNotUseDatabase = allowNotUseDatabase;
        databaseName = null;
    }
    
    /**
     * Find database name.
     *
     * @return database name
     */
    public Optional<String> findDatabaseName() {
        return Optional.ofNullable(databaseName);
    }
}
